Philias h



( No Model.)

P. H. BINET.

BELT TIGHTE'NER. No. 332,867. Patented Dec. 22, 1885.

UNITED STATES PATENT OFFICE.

PHILIAS H. BINET, OF EAST BRIGHTON, VERMONT.

BELT-TIGHTENER.

SPECIFICATION forming part of Letters Patent No. 332,867, dated December22, 1885.

Application filed October 10, 1885. Serial No. 179,546.

To all whom it may concern:

Be it known that I, PHILIAS H. BINET, a citizen of the United States ofAmerica, residing at East Brighton, in the county of Essex and State ofVermont, have invented certain new and useful Improvements inBelt-Tighteners; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame. reference being had to the accompanying drawings, and to lettersor figures of reference marked thereon, which form a part of thisspecification.

My invention has reference to belt-tighteners; and it consists in theimprovements hereinafter described and set forth.

In the accompanying drawings, Figure 1 is a side View of my improvedbelttightener, showing the same resting lightly upon the slatdriving-belt. Fig. 2 is a sectional view taken through the line or x ofFig. 1, and Fig. 3 is a transverse section showing my improved belt-'tightener applied to a horizontallymoving belt.

In the accompanying drawings,which illustrate myimprovement, A indicatesa frame, to which I have shown my improvement applied, for the purposeof better illustrating the same, said frame being provided withtransverse shafts, on which are located the drivingpulleysa and 1),around which passes the belt B.

In operating machinery from the drivepulley it is desirable to have thebelt pass as loosely as possible around the same without beingpositively slack, thereby avoiding unnecessary tension upon the belt andloss of power, my invention being designed to tighten the beltautomatically without unnecessary strain upon the same.

The frame A is provided with depending hangers O, which are bracedthereto by means of arms 0, and between said hangers G are pivotallyattached the side bars of a frame, D, between the ends of which isjournaled the pulley E, which is adapted to bear against the drivingbeltB. The frame D may be braced by bars 0 e. The end of the frame Dopposite the pulley E is pivotally attached to weight-carrying frame F,which consists of side bar, f, and transverse cross-bars f, upon whichis placed a weight, I, the opposite end being pivotally attached to across-bar, 9, said cross-bar also passing through the side beams of theframe D. In front of the hanger O, to

(No model.)

the frame A is pivotally connected a depending bar, H, the lower ends ofthe same being secured by bolts to the side bars, f, of the frame F. Bythis construction it will be seen that the weight I at the end of theframe F will have a tendency to depress the end to which it is attachedand raise its opposite end, which is attached to the pulley-carryingframe D, so as to bring the pulley in contact with a belt, thus forcingone side of the belt in so as to take up the slack. The weight I may bevaried by adding to or taking off sections of the same. An excessivemovement of the frame F will be prevented by providing a block orportion ofthe frame,so that the weight I will strike against the same.

Under the belttightener. hereinbefore described, is pivotally attachedabar, J, to which a lever, K, is pivoted, and said lever is provided atone end with a weight, K, the opposite end being adapted to engage, whenfree, with one of the side bars, f, of the frame F, so as to hold theend of said frame in a raised position, so that the pulley E of theframe D will only come lightly into contact with the belt, as shown inFig. l. Vhen it is desired to tighten the belt B, the end of the pivotedbar K opposite to which the weight is attached is depressed, so as toengage with a spring-catch, L, thus allowing the end of the frame Fwhich carries the weight I to be depressed, so as to bring the pulley Ein contact with the belt.

When the belt B is idle or running light, the parts will be in theposition as shown in Fig. 1, and when the weighted end of the frame F isdepressed theframe D will be brought nearer a horizontal position, thuscausing the pulley to bear upon the belt, so as to tighten the samearound the pulleys a and b.

I claim In a belt-tightener, the frame D, provided with a pulley adaptedto be moved so as to engage with the belt, a weighted frame pivotallyattached thereto, in combination with the bar K, carrying at one end aweight, the opposite end being adapted to engage with a spring-catch,substantially as shown, and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

. PHILIAS H. BINET.

Witnesses:

LOUIS TRUELEAN,

J osnrn L. BROUIL ET.

